Gearing.



'Patented Apr, 23, 1912.

GEABING. APPLIGATION Hmm 00T. 24, 1910.

H. M. NOERIS.

m 4 T... T il .n j); vr U 2 mi. 3 2 l 2. t n z u 1 rb AJ Y. V 2 a I Y. l U

? KM S. Cm.

www?

oo xezsses @W objects are' attained in "3 and 4 each being HENRYn., Nonnis, 4or.1niaczllrir'Ari, oH'Io, Assienon 'ro THE CINCINNATI BIcKFoRD' TooLi'coMPANY, on crnciNNATL- fGnAnING.

' Speciication of Letters Patent.

oHIo, A CORPORATION or oHIo.

Patented Apr. 23, 1912 lApplication tiled: October 24, 1910. Serial No. 588,601.

Be it'known that I, HENRY. M.' NoRnIs, a citizen of the'United Sta-tes, residing at Cin# i cinnati, Ohio, have new and useful Improvement lin -Grearing, of .which the following is a specication. "l

My invention rela-tes to gearing andthe objects of my improvementsare to provide double series of speedchanging gears for the spindle; to provide a speed plate for indicating the proper cutting speed for drillsof diiierent size, and to provide simple and durable construction and assemblage ofrthe various members for securing facility of operation and eiciency of' action.' These the following de-4 scribed manner as illustrated in the `acca-11. paying drawings, in which 'Figures'l and 2 are respectively llongitudinaland' transverse vertical sections through thefispindle Vof'gearing embodying my improyements; Fig. `3 the face of the speed plate; Figs 4, 5 and 6 show the operating levers with the speed plate indifferent adjusted positions', and Figs. 7, 8 and 9 diagrams showing the gea-rs'in different positions of engagement for corresponding speeds'. f In the drawings, 1 represents the casing adapted to be supported on lthe armof a radial drill, 2 the driving .shaft .provided with' idle driving and reversing miter' gears formed with a ,clutch member 5. A' double clutch member 6 splinedon said shaft is movablev alternately intoengagement'with the clutch members 5 in the'ordinary manner by means of a hand 'leverfiiot shown. A1- miter gear 7 mounted to turnon' shaft 8 and vformed with an eX- tended hub?v which terminates in a clutch member 9 is journaled in bearing l1 in continuous engagement with gears 3 and 4. A shaft 12 journaled vin fixed bearings is provided with a pinion13'and with a gear 14 in engagement with a pinion 15 which is secured on the hub ofmiter gear 7. :A gear 16 mounted to turn on shaft- 8 is journaled in a fixed bearing and formed with a clutch The spindle 18 is splined in a v. sleeve 19 which is journaled in a fixed bearing and provided with a gear 21- andwith a pinion 22 in engagement with gearfl. A gear 23 formed with a clutch member-24 and a pinion 25 formed with a clutch menber 26 are spliued, on shaft 8. .Shifting raeks 27 i and 28 are provided with ,forked arms 29 and 31--in engagement respectively with 'the hubs of the gear 23 and the pinion' 25. A shaft 32 isprovided with ahand lever 33 and with a' segmental gear 34 in engagement with rack 27. A- s1eeve'35 mounted to turn and with a. segmental gear 37 v in engagement "with 'rack 28.

A Vcurved speed pla-te 38'is carried byhand lever 33 in an are concentric With shaft 32. Columns 39 and 41 of number'characters' displayed on said plate lare dividedinto` a vplurality'fofgroups as 42, 43, 44 and 45. The numbers in column 39 are for indica-ting the 'different sized drills to be usedl vfor corre- .on shaft 32 is provided with `a hand lever 36 'i Jponding speeds ofthe spindle. Column 41 consists of the same series of consecutive eating the corresponding speed changes in shaft 2 which may be effected by means of the speed changing mechanism shown and described in `the United States patent granted to 686,116 or byany other suitable speed chang'- 'ing mechanism.

' In operation, for the spindle corresponding to the `respective groups on the speed plate vmay be effected by the. movement of the gear 23 and the pinion 25 bymeans of the handleve-rs 'with the shifting connections therewith. For group 42 representing the slowest group speedthe hand levers may be positioned asl shown in Fig. 4 withy the gear 23v and pinion 25 in engagement with the corresponding pinion 13 and gear 21 as shown in Fig. 2. In this positionthespindle is driven from the miter gear 7 through pinion 15, gear 14, pinion 13, rear 23, shaftS, pinion 25 and gear 21 For group 43 the movement of hand lever 36 intregistration with shown by dotted lines in Fig. 4 disengages pinion 25 from gear 21 and engages the clutch members 26 dle may. be driven 'from the miter gear 7 through pinion 15,.gear 14, pinion 13, gear 23, shaft 3, gear 16 and pinion 22 as shown in Fig. 7. v

For group 44 the handlever 33 with the speed plate m'ay be turned in an upward position and hand lever 36 moved into registration' With said group 4 4 as shown by dotted lines in Fig. 5. In this position' the gear vnumbers repeated in each group for indi-.

the major changes of speed.

group 43 as loo and 1 7 whereby the spin- 23 is out of engagement with the .pinion 13 and the clutch members 24 and 9 into engagement with. each other, the clutch members i6 and 17 disengaged and pinion 25 rengaged with gear 21- whereby the spindle may be driven from miter gear through pinion 15, gear 23 clutched thereto, shaft 8, pinion Q5 and gear 21 as shown in Fig. 8. y

For gro-up 45 with the hand levers posi'- tioned as shown in Fig. 5 the pinion 25 is out of engagement with the gear 21 and the clutch members 26 and 17 are rengaged whereby the spindle may be driven at its highest group speed from miter gear 7 through pinion 1:3, gear 23 clutched thereto, shaft 8, pinion 25, gear 16l clutched thereto and'gear 22 as shown in Fig. 9. Each group speed above describedA may be graduated into niinorspeed changes as indicated by the numbers in column 41 on the speed plate by' 4'means of Corresponding changes in the speed of the shaft Qywith the miter gear v7.

Afterfthe proper speed is selected for one of thel groups as above described, Vthe minor graduations for the size of the different drills indicated in column 39l of said group are indicated by corresponding numbers in column 41. y

For disconnecting the` spindle from 'the bevel gear 7' hand plate may clutch members 24 and 9;

`lever S'Bavith the speed*- be moved into the intermediatevv positionshown in Fig. 6 whereby gearlis.l ,disengaged 4from the correspondingl pinion 13 Without eecting` the engagement ot the" Having fully described my improvements,

' and adapted tof;.i1f1'dicate predetermine plate forl separately I eating predetermined speeds of the spindle Y what I claim as my invention and desire toI secure by Letters-Patent of the United" States is 1. Thefco -bination of a spindle, `a shaft, av drivingl'gear, detachable changevr speed ear and clutch'connections therefrom with the shaft", separate and"rdetachable change speed gear i andv clutch,v connect-ions from -the shaft with` the'y spindle,respeetive'actnating levers With v"con'nections. forv said ','change speed gear and clutcliconnections,.. andl a speed plate movable with one of "said lei-'ers speedsoegtfthe spindleby the position ot' said other lever in relation, thereto.

' 2211i 'a gearing,.the-'combination of a spindle, 'a drivingligear, a shaft journaled therein, detachablexehange speed gear connections therefrom, "Withthegear, and also detachable change speed gear connections from the shaft with thev spindle, and a speed plate constructed andarr'anged for automatically indicating the different speeds ot the spindlel correspondingto the position of saidl connections.:

3. In a gearing,

a spi dle, a drivinggear,

a plural number of detachable change speed gear r.connect-ions between them, and` a speed and automatically indi- `correspending `with -diierent posit-ions of 'thejfrespective said connections.,.v

aromas.

Witnesses; v

B. S CARE?.-r 

